HiQ® specialty gases and specialty equipment have an important role in many areas of contract and commercial laboratories. Instrument grade pure gases such as air, helium, hydrogen and nitrogen are used to zero and purge analytical equipment.

Specialty equipment such as cylinder regulators and gas supply panels are used in many areas to control gas cylinder pressures while ensuring purity is not compromised. Where the use of cylinder may not be practical, Linde offers a broad range of high purity gas generators.

Environmental measurements for air, water and ground pollution use a number of individual calibration standards. Linde's comprehensive range of environmental standards meets the requirements of regulatory agencies around the world.